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Earth, Planets and Space
Fig. 5 | Earth, Planets and Space

Fig. 5

From: Tide-induced magnetic signals and their errors derived from CHAMP and Swarm satellite magnetometer observations

Fig. 5

Spatial SH power spectra of satellite-based EMTS estimates. From top to bottom: M2, N2 and O1. Black lines: KALMAG estimates (solid) with prior and posterior standard deviation (light and solid dashes). Blue: CM5 estimates from Sabaka et al. (2015), i.e., mostly 12 years of CHAMP data. Red: Estimates from Grayver and Olsen (2019), i.e., 15 years of CHAMP and Swarm data. For better comparability with the literature, all fields are represented at sea level (cf., Grayver and Olsen 2019; Sabaka et al. 2020)

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